Vocab
Whats A Force?
Push/Pull
An empty grocery cart requires less force than a full grocery cart.
Newton's 2nd Law
What Are Balanced Forces
When the sum of the forces on an individual object add up to 0
What's an independent variable
Variable/condition chosen to be investigated."What I decided to change or test.
Falling dominoes
kinetic
What Are Balanced Forces?
When the sum of the force on an individual add up to 0
You are standing on a bus. The bus driver makes a sudden stop and you fly forwards.
Newton's 1st Law
What are force pairs?
The equal/opposite forces always present when two objects are in contact,The objects push together equally or pull apart equal. For example a book
What's a dependent varible.
The measured result of the. this is the varible that depends on "what I change"
Parked car
potential
Whats Gravity
A downward force exerted on everything that has mass by earth
A swimmer pushes the water backwards with her arms and the water pushes her forwards.
What are unbalanced forces
When the sum of the forces on an individual object don't add up to 0
Energy
Ability to do work or cause change
stored energy
What is motion?
Changing the location of an object from one place to another
Bowling pins will not fall unless the bowline ball hits them.
Newton's 1st Law
Friction
A force that opposes motion between two objects or surfaces.
Intertia
The tendency of an object to resist a change in motion
Definition of kinetic energy
energy in motion
What is the law of conservation of energy?
Energy is neither created nor destroyed. It is simply converted between types.
If you kick a soccer ball and a bowling ball with the same amount of force, the soccer ball will go farther.
Newton's 2nd Law
What type of energy does friction produce
Thermal energy
Accleration
The change in speed or motion
Potential - raise the object higher
Kinetic - apply more force or add more mass